Perfect for boondocking adventures, the Thetford AquaBio RV Holding Tank Treatment eliminates odors and breaks down waste to prevent clogs. The fast-acting formula doesn't rely on harsh chemicals, and it's been tested for safe use in RV and marine toilets, holding tanks, and septic systems. Odor-fighting design Breaks down waste quickly to prevent clogs Formula doesn't use harsh chemicals Safe to use in RV and marine toilets, holding tanks, and septic systems